查询词典 weighted function

Sulfur isotope measurements of deposits such as those in the 1.1 Ga Duluth Complex, the Permo-Triassic intrusions of the Noril'sk area, and the 1.4 Ga Kabanga intrusions provide evidence for the derivation of S from both sulfide-and sulfate-bearing country rocks. The 1.3 Ga Voisey's Bay deposit provides an example where δ34S values of the ores commonly fall within the accepted mantle range of 0 ± 2‰, but detailed studies of Proterozoic metasedimentary country rocks show that their weighted average δ34S value is also within this range.

如1.1 Ga的Duluth杂岩、Noril'sk地区二叠-三叠纪侵入岩和1.4 Ga的Kabanga侵入岩体中矿床的硫同位素测定结果证明硫来自含硫化物和硫酸盐的围岩。1.3 Ga的Voisbey's Bay矿床矿石的硫同位素δ34S值通常落入公认的地幔硫同位素组成范围(0±2‰)内，而对其元古宙变质沉积围岩进行的详细研究结果显示δ34S的平均值也在此范围。

Of the 19 cases,19 fetus were found,MRI confirmed 14 cases considered or suspected as fetal corpus callosum agenesis by US(8 cases are completed agenesis of corpus collosom-CACC,6 cases are partial agenesis of corpus collosom-PACC, and 5 cases had took on autopsy),however 3 cases are mild enlargement of lateral cerebral ventricle and 2 cases are leukodystrophy.In these cases,MRI confirmed a Dandy-Walker syndrome and a lipoma of corpus callosum suspected by US,detect a Dandy-Walker syndrome and a microcephalus made missed diagnoses by US.The fetal corpus callosum and additional cerebral anomalies were shown more clearly on MR T_2-weighted images.

胎儿胼胝体长度与额枕径的比值在24～36孕龄阶段相对较恒定。2、19例孕妇共检出胎儿19个，MRI证实超声疑诊的胎儿胼胝体发育不全14例(完全型胼胝体发育不全8例，部分型胼胝体发育不全6例，有胎儿尸检结果对照者5例)，3例为单纯侧脑室轻度扩张，2例考虑脑白质发育不良，合并Dandy—Walker综合征1例，胼胝体脂肪瘤1例，检出超声漏诊合并Dandy-Walker综合征1例及脑小畸形1例。

The striking result is that the weighted variance does not increase monotonically over time.

醒目的结果是，被衡量的变化单调地不增加随时间。

New nonlinear weighted average multidirectional morphological filtering algorithm is proposed, which is used in suppressing speckle noise.

提出了一种新的用于散斑噪声抑制的非线性加权均值多方向形态滤波算法。

In this paper, a new nonlinear weighted average multidirectional generalized morphological filtering algorithm is proposed to suppressing speckle noise.

本文提出了一种新的用于散斑噪声抑制的非线性加权均值多方向广义形态滤波算法。

Objective To investigate the value of diffusion-weighted MR imaging in differentiating brain abscesses from necrotic or cystic tumors.

目的 研究磁共振弥散加权成像对脑脓肿和脑内坏死、囊变肿瘤的鉴别诊断价值。

Also,we prove that for a 2-connected weighted graph,if〓 for every pair of nonadjacent verticesu and v,then the graph contains either a Hamilton cycle or a cycle of lengthat least c and weight at least s.

同时，我们还证明了：如果在一个2连通赋权图G中，对于每一对不相邻的顶点u和v，有〓和〓，那么G或者为Hamilton图或者包含一条长度至少为c，且权至少为s的圈。

The numerical results show that our method is effective. For the noncharacteristic Cauchy problem for 2-D and 3-D heat equation, we give the explicit H\"{o}lder type stability estimates by using weighted energy method. Especially,H\"{o}lder type stability estimate for discrete solutions of the heat equation is obtained through a fully discrete method. The numerical results are presented.

对于二维和三维的热传导方程的非特征Cauchy 问题，我们利用权函数方法，给出了一个显式的H\&{o}lder 型的稳定性估计，特别的，对于二维的非特征Cauchy问题，我们利用充分离散的方法，对二维问题的离散形式同样给出了H\&{o}lder 型的稳定性估计，同时，我们也给出了数值例子来说明我们的估计。

Meta analysis was used to comprehensively quantitatively analyze the upper lip with esthetic plane and soft tissue plane before and after extraction and nonextraction treatment. According to homogeneity test, fixed effect model and random effect model were adopted to calculate weighted mean difference and 95% confidence interval (95% CI).

运用meta分析技术对拔牙与非拔牙矫治前后上下唇与审美平面及软组织平面的距离进行综合定量分析，根据资料异质性检验，采用固定效应模型及随机效应模型，计算合并加权均数差及其95%CI。

Methods Diffusion-weighted echo-planar imaging sequences with different b values were performed in 32 patients with evidence of prostate cancer, including 18 patients treated with endocrine therapy over 6 months and 14 nontreated matched patients as controls.

目的 探讨内分泌治疗前后前列腺外周带癌区和非癌区的ADC值的变化情况，并比较不同b值时ADC值之间的差异。

A strange and mysterious deep sea creature.

一种奇异、神秘的深海生物。

It's a yellow rectangle .

这是黄色的长方形。